WO2022138392A1 - Appareil de station de base, programme, système, et procédé de commande - Google Patents

Appareil de station de base, programme, système, et procédé de commande Download PDF

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Publication number
WO2022138392A1
WO2022138392A1 PCT/JP2021/046363 JP2021046363W WO2022138392A1 WO 2022138392 A1 WO2022138392 A1 WO 2022138392A1 JP 2021046363 W JP2021046363 W JP 2021046363W WO 2022138392 A1 WO2022138392 A1 WO 2022138392A1
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WIPO (PCT)
Prior art keywords
cell
user terminal
resource block
base station
interfered
Prior art date
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PCT/JP2021/046363
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English (en)
Japanese (ja)
Inventor
叔達 蔡
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Ｈａｐｓモバイル株式会社
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Application filed by Ｈａｐｓモバイル株式会社 filed Critical Ｈａｐｓモバイル株式会社
Priority to EP21910540.0A priority Critical patent/EP4271096A1/fr
Publication of WO2022138392A1 publication Critical patent/WO2022138392A1/fr
Priority to US18/337,435 priority patent/US20230337195A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
    • H04W16/10—Dynamic resource partitioning
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/18502—Airborne stations
    • H04B7/18504—Aircraft used as relay or high altitude atmospheric platform
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/005—Moving wireless networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/06—Airborne or Satellite Networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices

Definitions

  • the present invention relates to a base station device, a program, a system and a control method.
  • Patent Document 1 describes an air vehicle that forms a multi-cell on the ground by irradiating a beam toward the ground and provides a wireless communication service to a user terminal in the multi-cell.
  • Patent Document 1 Japanese Unexamined Patent Publication No. 2020-170888
  • a base station apparatus may be mounted on an air vehicle to form a multi-cell including a plurality of cells on the ground to provide a wireless communication service to a user terminal in the multi-cell.
  • the base station device may include a position information acquisition unit that acquires the position information of the user terminal in the multi-cell area.
  • the base station device may include an air vehicle-related information acquisition unit that acquires air vehicle-related information including position information and attitude information of the air vehicle. Based on the position information and aircraft-related information of the plurality of user terminals, the base station device is expected to receive interference from cells other than the cells in the area among the plurality of user terminals. It may be provided with a terminal identification unit for specifying a terminal.
  • the base station device is a cell of the first cell, which is a cell in which the interfered user terminal is located, and a second cell, which is a cell predicted to interfere with the interfered user terminal, so as to avoid interference.
  • a scheduling control unit that controls the scheduling of radio resources may be provided.
  • the scheduling control unit allocates the resource block in the second cell corresponding to the resource block allocated to the interfered user terminal in the first cell to any user terminal located in the second cell. You may control it so that it does not exist.
  • the scheduling control unit transfers a resource block in the second cell, which has the same frequency band as the resource block allocated to the interfered user terminal in the first cell and has the same time slot, to the second cell. It may be controlled not to be assigned to any user terminal in the area.
  • the scheduling control unit transfers the resource block in the second cell corresponding to the resource block allocated to the interfered user terminal in the first cell from a plurality of user terminals located in the second cell. It may be controlled to be assigned to the selected user terminal based on the distance to the interfered user terminal.
  • the scheduling control unit transfers a resource block in the second cell, which has the same frequency band as the resource block allocated to the interfered user terminal in the first cell and has the same time slot, to the second cell. It may be controlled so that a plurality of user terminals in the area are assigned to the selected user terminal based on the distance from the interfered user terminal.
  • the scheduling control unit uses the resource block in the second cell corresponding to the resource block allocated to the interfered user terminal in the first cell among a plurality of user terminals located in the second cell. It may be controlled so that the distance to the interfered user terminal is assigned to the user terminal longer than the predetermined threshold value.
  • the scheduling control unit uses the resource block in the second cell corresponding to the resource block allocated to the interfered user terminal in the first cell among a plurality of user terminals located in the second cell. It may be controlled so as to be assigned to a user terminal having a longer distance from the interfered user terminal.
  • the scheduling control unit includes a resource block allocated to the interfered user terminal in the first cell and a resource block allocated to the user terminal in the second cell where the distance from the interfered user terminal is shorter than a predetermined threshold value. It may be controlled so that at least one of the frequency band and the time slot is different.
  • the scheduling control unit includes a resource block allocated to the interfered user terminal in the first cell and a resource block allocated to the user terminal in the second cell where the distance from the interfered user terminal is shorter than a predetermined threshold value. Both the frequency band and the time slot may be controlled to be different.
  • the terminal specifying unit identifies a change in the traveling direction of the flying object based on the position of the flying object in the flight path, estimates a change in the position of the multicell based on the specific result, and when the estimated change occurs.
  • the interfered user terminal that is expected to receive interference from cells other than the cells in the area may be specified.
  • the terminal specifying unit identifies a change in the inclination of the flying object according to the position of the flying object in the flight path, estimates a change in the position of the multi-cell based on the specific result, and is present when the estimated change occurs.
  • the interfered user terminal that is expected to receive interference from cells other than the in-service cell may be specified.
  • the terminal identification unit may predict the attitude change of the air vehicle based on the flight direction and inclination of the air vehicle and the wind power information output by the wind power sensor.
  • a program for making a computer function as the base station device is provided.
  • a system including the base station device and the flying object is provided.
  • a control method mounted on an air vehicle forming a multi-cell including a plurality of cells on the ground, and being executed by a base station apparatus for providing a wireless communication service to a user terminal in the multi-cell.
  • the control method may include a position information acquisition step of acquiring the position information of the user terminal in the multi-cell area.
  • the control method may include an air vehicle-related information acquisition stage for acquiring air vehicle-related information including position information and attitude information of the air vehicle.
  • the control method is based on the position information and the vehicle-related information of the plurality of user terminals, and the interfered user terminal predicted to receive interference from cells other than the cells in the area among the plurality of user terminals.
  • the control method is the radio of the first cell, which is a cell in which the interfered user terminal is located, and the second cell, which is a cell predicted to cause interference to the interfered user terminal, so as to avoid interference. It may have a scheduling control stage that controls the scheduling of resources.
  • HAPS100 is shown schematically. It is explanatory drawing for demonstrating the interference caused by the position change of HAPS100 and the like. It is explanatory drawing for demonstrating the scheduling control of a radio resource by a base station apparatus 300.
  • An example of the processing flow by the base station apparatus 300 is schematically shown.
  • An example of the functional configuration of the base station apparatus 300 is schematically shown.
  • An example of the hardware configuration of the computer 1200 functioning as the base station apparatus 300 is schematically shown.
  • the wireless environment of the multi-cell configuration is likely to change depending on the flight conditions (turning, up and down), and it may be described as a user terminal (UE (User Equipment)).
  • UE User Equipment
  • the situation of interference with the aircraft also tends to change easily. Due to such a change in the wireless environment, the interference situation of the wireless resource scheduled to the UE may be deteriorated, which may lead to a decrease in the throughput of the UE.
  • the base station apparatus mounted on the vehicle constantly acquires, for example, air vehicle-related information (latitude / longitude, altitude, inclination, etc.) and performs inter-cell cooperative control (inter-cell control) of each cell of the multi-cell. (Adjust the scheduling with) to perform appropriate scheduling and improve the throughput of the UE.
  • air vehicle-related information latitude / longitude, altitude, inclination, etc.
  • inter-cell control inter-cell control
  • FIG. 1 schematically shows an example of HAPS100.
  • HAPS100 may be an example of an air vehicle.
  • HAPS100 may function as a stratospheric platform.
  • the HAPS 100 forms a feeder link 102 with a gateway 40 on the ground while flying in the stratosphere, and forms a multicell 110 by irradiating a beam 104 toward the ground.
  • the HAPS 100 provides a wireless communication service to the user terminal 400 in the multicell 110.
  • the HAPS 100 includes a main body 130, a wing 140, and a solar cell panel 150.
  • the electric power generated by the solar cell panel 150 is stored in one or a plurality of batteries arranged in at least one of the main body 130 and the wing 140.
  • the electric power stored in the battery is used by each configuration included in the HAPS 100.
  • a flight control device 200 and a base station device 300 are arranged in the main body 130.
  • the flight control device 200 controls the flight of the HAPS 100.
  • the base station device 300 controls the communication of the HAPS 100.
  • the HAPS 100 and the base station device 300 may constitute a system.
  • the flight control device 200 controls the flight of the HAPS 100 by controlling, for example, the rotation of the propeller, the angle of the flap and the elevator, and the like.
  • the flight control device 200 may manage various sensors included in the HAPS 100. Examples of the sensor include a positioning sensor such as a GPS (Global Positioning System) sensor, a gyro sensor, an acceleration sensor, a wind sensor, and the like.
  • the flight control device 200 may manage the position, attitude, moving direction, moving speed, and the like of the HAPS 100 by the output of various sensors.
  • the base station apparatus 300 may form a feeder link 102 with the gateway 40 by using an FL (Feeder Link) antenna.
  • the base station device 300 may access the network 20 via the gateway 40.
  • the base station apparatus 300 may form the multi-cell 110 by irradiating the beam 104 toward the ground using an SL (Service Link) antenna.
  • the multi-cell 110 is composed of a plurality of cells 120.
  • FIG. 1 illustrates a case where the number of cells 120 is 7, but the number of cells 120 is not limited to this.
  • the base station device 300 may establish a service link with the user terminal 400 in the multicell 110.
  • the base station device 300 relays communication between the network 20 and the user terminal 400 via, for example, the feeder link 102 and the service link.
  • the base station apparatus 300 may provide a wireless communication service to the user terminal 400 by relaying the communication between the user terminal 400 and the network 20.
  • the network 20 may include a core network managed by a telecommunications carrier.
  • the core network may conform to the LTE (Long Term Evolution) communication method. That is, the core network may be an EPC (Evolved Packet Core).
  • the core network may comply with the 5G (5th Generation) communication method. That is, the core network may be 5GC (5th Generation Core network).
  • the core network may be compliant with a 3G (3rd Generation) communication method, or may be compliant with a communication method after the 6G (6th Generation) communication method.
  • the network 20 may include the Internet.
  • the user terminal 400 may be any communication terminal as long as it can communicate with the HAPS 100.
  • the user terminal 400 is a mobile phone such as a smartphone.
  • the user terminal 400 may be a tablet terminal, a PC (Personal Computer), or the like.
  • the user terminal 400 may be a so-called IoT (Internet of Thing) device.
  • the user terminal 400 may include anything corresponding to so-called IoT (Internet of Everything).
  • the HAPS 100 may rotate over the target area in order to cover the target area on the ground by the multi-cell 110.
  • the HAPS 100 is a feeder to and from the gateway 40 by adjusting the directivity direction of the FL antenna while patrolling over a predetermined flight path such as a circle, a D-shape, or an 8-character shape over the target area, for example.
  • the link 102 is maintained and the coverage of the target area by the multicell 110 is maintained by adjusting the directivity of the SL antenna. In this way, patrolling over the target area in a fixed orbit may be described as fixed-point flight.
  • the position and attitude of HAPS100 constantly change due to flight. Further, the posture of the HAPS 100 may be finely changed or greatly changed due to the influence of wind or the like. Therefore, the wireless environment of the multi-cell 110 is likely to change depending on the flight status of the HAPS 100.
  • the multi-cell 110 is formed by a plurality of beams, and all the cells 120 may move uniformly, or each of the plurality of cells 120 may move separately.
  • FIG. 2 is an explanatory diagram for explaining the interference caused by the position fluctuation of the HAPS 100 and the like.
  • the user terminal 402 and the user terminal 406 are in the cell 122
  • the user terminal 404 and the user terminal 408 are in the cell 124.
  • the user terminal 402 Before the position of the cell 124 was displaced, the user terminal 402 was located in the cell 122, and the user terminal 404 was located in the cell 124, but after the position of the cell 124 was displaced, the user terminal 402 was located. , Located in both cells 122 and 124. In such a case, if the user terminal 404 located near the user terminal 402 is assigned a resource block having the same frequency band as the resource block for the user terminal 402 in the cell 122 and having the same time slot. , The communication of the user terminal 404 interferes with the user terminal 402, and the throughput is lowered.
  • FIG. 3 is an explanatory diagram for explaining the scheduling control of radio resources by the base station apparatus 300.
  • the base station apparatus 300 controls the scheduling of radio resources so as to suppress the interference described in FIG.
  • the base station apparatus 300 uses the resource block in the cell 124, which corresponds to the resource block allocated to the user terminal 402 in the cell 122, at a distance from the user terminal 402 and has a weak correlation. Allocate to 408.
  • the resource block in the cell 124 corresponding to the resource block in the cell 122 may be a resource block in the seyssel 124 that has the same frequency band as the resource block in the cell 122 and has the same time slot. Since the data communication between the base station device 300 and the user terminal 408 is directional, even if a resource block in the same frequency band and the same time slot as the user terminal 402 is allocated to the user terminal 408, it interferes with the user terminal 402. do not do.
  • the base station apparatus 300 has a short distance from the user terminal 402 and has a strong correlation with the user terminal 404 in the cell 124, which has a different frequency band and time slot from the resource block allocated to the user terminal 402 in the cell 122. Allocate a resource block. As a result, it is possible to avoid interference of the communication by the user terminal 404 in the cell 124 with the communication of the user terminal 402.
  • FIG. 4 schematically shows an example of the processing flow by the base station apparatus 300.
  • a state in which a plurality of user terminals 400 are in the service area for the multi-cell 110 will be described as a start state.
  • step 102 step may be abbreviated as S
  • step 102 step may be abbreviated as S
  • step 102 the position information of the user terminal 400 in each cell 120 is acquired.
  • step104 flight object related information (latitude / longitude, altitude, direction, inclination, etc.) is acquired.
  • the user terminal 400 that is likely to be interfered is specified among the plurality of user terminals 400 located in the multi-cell 110 based on the position information and the aircraft-related information acquired in S102 and S104.
  • scheduling of radio resources is controlled so as to avoid interference of the user terminal 400 specified in S106.
  • the base station apparatus 300 does not schedule radio resources that are likely to interfere with the identified user terminal 400.
  • the base station apparatus 300 schedules radio resources that are likely to interfere with the user terminal 400 having a weak correlation. Scheduling to avoid interference may be done on both the frequency axis and the time axis.
  • S110 it is determined whether or not to terminate the provision of the wireless communication service. If it is determined not to end, the process returns to S102, and if it is determined to end, the process ends.
  • FIG. 5 schematically shows an example of the functional configuration of the base station apparatus 300.
  • the base station device 300 includes a storage unit 302, an aircraft-related information receiving unit 304, a core communication unit 306, a terminal communication unit 308, and a communication control unit 310.
  • the flight object-related information receiving unit 304 receives the flight object-related information from the flight control device.
  • the aircraft-related information receiving unit 304 receives, for example, the position information of the HAPS 100.
  • the aircraft-related information receiving unit 304 receives, for example, the attitude information of the HAPS 100.
  • the aircraft-related information receiving unit 304 receives, for example, pitch, roll, and yaw information of the HAPS100.
  • the air vehicle-related information receiving unit 304 receives the wind power information output by the wind power sensor.
  • the aircraft-related information receiving unit 304 stores the received information in the storage unit 302.
  • the core communication unit 306 communicates with the core network.
  • the core communication unit 306 may establish the gateway 40 and the feeder link 102 by the FL antenna for communication with the gateway 40 on the ground.
  • the core communication unit 306 may communicate with the terrestrial core network via the feeder link 102.
  • the terminal communication unit 308 communicates with the user terminal 400.
  • the terminal communication unit 308 may form the multi-cell 110 by irradiating the beam 104 toward the ground using the SL antenna.
  • the terminal communication unit 308 may establish a service link with the user terminal 400 in the multicell 110.
  • the communication control unit 310 controls the communication of the user terminal 400.
  • the communication control unit 310 establishes a wireless communication connection with the user terminal 400, allocates wireless resources to the user terminal 400, and controls communication of the user terminal 400.
  • the communication control unit 310 includes a position information acquisition unit 312, an air vehicle-related information acquisition unit 314, a terminal identification unit 316, and a scheduling control unit 318.
  • the position information acquisition unit 312 acquires the position information of the user terminal 400 located in the multi-cell 110.
  • the position information acquisition unit 312 may acquire the position information of the user terminal 400 received from the user terminal 400 by the terminal communication unit 308.
  • the user terminal 400 may measure its own position information by, for example, at least one of GPS positioning, base station positioning, and Wi-Fi (registered trademark) positioning.
  • the flight object-related information acquisition unit 314 acquires flight object-related information.
  • the flight object-related information acquisition unit 314 may acquire the flight object-related information stored in the storage unit 302.
  • the terminal specifying unit 316 is based on the position information of the plurality of user terminals 400 located in the multi-cell 110 and the flight object-related information, and the terminal specifying unit 316 is other than the cell 120 in the area among the plurality of user terminals 400. Identify the interfered user terminal that is expected to receive interference from cell 120.
  • the terminal specifying unit 316 specifies, for example, a change in the traveling direction of the HAPS 100 or a change in the inclination of the HAPS 100 according to the position in the flight path of the HAPS 100, and estimates a change in the position of the multi-cell 110 according to the specific result. Then, when the estimated change occurs, the interfered user terminal that is predicted to receive interference from the cell 120 other than the cell 120 in the service area is specified.
  • the terminal identification unit 316 may predict the attitude change of the HAPS100 based on the flight direction and inclination of the HAPS100 and the wind power information output by the wind power sensor. For example, the terminal identification unit 316 predicts that the nose of the HAPS100 will be further raised when it is predicted that the nose of the HAPS100 will be raised from the front while the nose of the HAPS100 is raised. Then, the terminal specifying unit 316 identifies the interfered user terminal that is predicted to receive interference from the cell 120 other than the cell 120 in the area based on the prediction result.
  • the scheduling control unit 318 controls the scheduling of radio resources for a plurality of user terminals 400 in the service area for each cell 120 of the multi-cell 110.
  • the scheduling control unit 318 describes the cell 120 (referred to as a zoned cell) in which the interfered user terminal is located so as to avoid the interference predicted to be received by the interfered user terminal specified by the terminal specifying unit 316. ), And controls the scheduling of radio resources in cell 120 (which may be referred to as an interfering cell) that is expected to interfere with the interfered user terminal.
  • the category cell may be an example of the first cell.
  • the interference cell may be an example of a second cell.
  • the scheduling control unit 318 does not allocate the resource block in the interfering cell corresponding to the resource block allocated to the interfered user terminal in the interfering cell to any user terminal 400 in the interfering cell. Control. As a specific example, the scheduling control unit 318 puts a resource block in the interfering cell in the same frequency band as the resource block allocated to the interfered user terminal in the interfering cell and in the same time slot in the interfering cell. It is controlled so that it is not assigned to any of the user terminals 400. As a result, although the resource block in the interference cell cannot be used for communication, it is possible to prevent interference with the interfered user terminal.
  • the scheduling control unit 318 transfers the resource block in the interfering cell corresponding to the resource block assigned to the interfering user terminal in the interfering cell from the plurality of user terminals 400 in the interfering cell from the interfering user terminal. It is controlled to be assigned to the selected user terminal 400 based on the distance from.
  • the scheduling control unit 318 has a plurality of resource blocks in the interfering cell that are in the same frequency band as the resource block assigned to the interfered user terminal in the interfering cell and have resource blocks in the same time slot in the interfering cell.
  • User terminal 400 may be controlled to be assigned to the selected user terminal 400 based on the distance from the interfered user terminal.
  • the scheduling control unit 318 sets the resource block in the interfering cell, which corresponds to the resource block allocated to the interfering user terminal in the interfering cell, to the interfering user terminal among the plurality of user terminals 400 in the interfering cell.
  • the distance may be controlled to be assigned to a user terminal whose distance is longer than a predetermined threshold value.
  • the scheduling control unit 318 sets the resource block in the interfering cell, which corresponds to the resource block allocated to the interfering user terminal in the interfering cell, to the interfering user terminal among the plurality of user terminals 400 in the interfering cell. It may be controlled to be assigned to the user terminal 400 having a longer distance.
  • the resource block corresponding to the resource block assigned to the interfered user terminal is allocated to the user terminal 400 having a weak correlation with the interfered user terminal, so that interference with the interfered user terminal can be avoided and the resource block can be avoided. Can be used efficiently.
  • the scheduling control unit 318 has a frequency band and a resource block allocated to a user terminal in which the distance between the interfered user terminal and the interfered user terminal in the interfering cell is shorter than a predetermined threshold value and the resource block allocated to the interfered user terminal in the area cell. At least one of the time slots may be controlled to be different. As a result, at least one of the frequency band and the time slot can be made different from the resource block allocated to the interfered user terminal with respect to the user terminal 400 having a strong correlation with the interfered user terminal, and interference is avoided. be able to.
  • the scheduling control unit 318 has a frequency band of a resource block allocated to the interfered user terminal in the area cell and a resource block allocated to the user terminal 400 in which the distance between the interfered user terminal and the interfered user terminal is shorter than a predetermined threshold value in the interfering cell. And both the time slot may be controlled to be different. As a result, for the user terminal 400 having a strong correlation with the interfered user terminal, both the frequency band and the time slot can be different from the resource block allocated to the interfered user terminal, and interference can be avoided. can.
  • FIG. 6 schematically shows an example of a hardware configuration of a computer 1200 that functions as a base station device 300.
  • a program installed on the computer 1200 causes the computer 1200 to function as one or more "parts" of the device according to the embodiment, or causes the computer 1200 to perform an operation associated with the device according to the embodiment or the one or the like.
  • a plurality of "parts" can be executed and / or a computer 1200 can be made to execute a process according to the above embodiment or a stage of the process.
  • Such a program may be run by the CPU 1212 to cause the computer 1200 to perform certain operations associated with some or all of the blocks of the flowcharts and block diagrams described herein.
  • the computer 1200 includes a CPU 1212, a RAM 1214, and a graphic controller 1216, which are interconnected by a host controller 1210.
  • the computer 1200 also includes an input / output unit such as a communication interface 1222, a storage device 1224, and a DVD drive and an IC card drive, which are connected to the host controller 1210 via the input / output controller 1220.
  • the storage device 1224 may be a hard disk drive, a solid state drive, or the like.
  • the computer 1200 also includes a legacy I / O unit such as a ROM 1230 and a keyboard, which are connected to the I / O controller 1220 via an I / O chip 1240.
  • the CPU 1212 operates according to the programs stored in the ROM 1230 and the RAM 1214, thereby controlling each unit.
  • the graphic controller 1216 acquires the image data generated by the CPU 1212 in a frame buffer or the like provided in the RAM 1214 or itself so that the image data is displayed on the display device 1218.
  • the communication interface 1222 communicates with other electronic devices via the network.
  • the storage device 1224 stores programs and data used by the CPU 1212 in the computer 1200.
  • the IC card drive reads the program and data from the IC card and / or writes the program and data to the IC card.
  • the ROM 1230 stores in it a boot program or the like executed by the computer 1200 at the time of activation, and / or a program depending on the hardware of the computer 1200.
  • the input / output chip 1240 may also connect various input / output units to the input / output controller 1220 via a USB port, a parallel port, a serial port, a keyboard port, a mouse port, and the like.
  • the program is provided by a computer-readable storage medium such as a DVD-ROM or IC card.
  • the program is read from a computer-readable storage medium, installed in a storage device 1224, RAM 1214, or ROM 1230, which is also an example of a computer-readable storage medium, and executed by the CPU 1212.
  • the information processing described in these programs is read by the computer 1200 and provides a link between the program and the various types of hardware resources described above.
  • the device or method may be configured to implement the operation or processing of information in accordance with the use of the computer 1200.
  • the CPU 1212 executes a communication program loaded in the RAM 1214, and performs communication processing with respect to the communication interface 1222 based on the processing described in the communication program. You may order.
  • the communication interface 1222 reads and reads transmission data stored in a transmission buffer area provided in a recording medium such as a RAM 1214, a storage device 1224, a DVD-ROM, or an IC card. The data is transmitted to the network, or the received data received from the network is written to the reception buffer area or the like provided on the recording medium.
  • the CPU 1212 makes it possible for the RAM 1214 to read all or necessary parts of a file or database stored in an external recording medium such as a storage device 1224, a DVD drive (DVD-ROM), an IC card, etc., on the RAM 1214. Various types of processing may be performed on the data. The CPU 1212 may then write back the processed data to an external recording medium.
  • an external recording medium such as a storage device 1224, a DVD drive (DVD-ROM), an IC card, etc.
  • the CPU 1212 describes various types of operations, information processing, conditional judgment, conditional branching, unconditional branching, and information retrieval described in various parts of the present disclosure with respect to the data read from the RAM 1214. Various types of processing may be performed, including / replacement, etc., and the results are written back to the RAM 1214. Further, the CPU 1212 may search for information in a file, a database, or the like in the recording medium. For example, when a plurality of entries each having an attribute value of the first attribute associated with the attribute value of the second attribute are stored in the recording medium, the CPU 1212 is the first of the plurality of entries.
  • the attribute value of the attribute of is searched for the entry that matches the specified condition, the attribute value of the second attribute stored in the entry is read, and the attribute value of the second attribute is changed to the first attribute that satisfies the predetermined condition. You may get the attribute value of the associated second attribute.
  • the program or software module described above may be stored on a computer 1200 or in a computer-readable storage medium near the computer 1200. Further, a recording medium such as a hard disk or RAM provided in a dedicated communication network or a server system connected to the Internet can be used as a computer-readable storage medium, whereby the program can be transferred to the computer 1200 via the network. offer.
  • a recording medium such as a hard disk or RAM provided in a dedicated communication network or a server system connected to the Internet can be used as a computer-readable storage medium, whereby the program can be transferred to the computer 1200 via the network. offer.
  • the blocks in the flowchart and the block diagram in the present embodiment may represent the stage of the process in which the operation is executed or the "part" of the device having a role of executing the operation.
  • Specific steps and "parts" are supplied with a dedicated circuit, a programmable circuit supplied with computer-readable instructions stored on a computer-readable storage medium, and / or with computer-readable instructions stored on a computer-readable storage medium. It may be implemented by the processor.
  • Dedicated circuits may include digital and / or analog hardware circuits, and may include integrated circuits (ICs) and / or discrete circuits.
  • Programmable circuits include logical products, ORs, exclusive ORs, Negative ORs, Negative ORs, and other logical operations, such as, for example, Field Programmable Gate Arrays (FPGAs) and Programmable Logic Arrays (PLAs). , Flip-flops, registers, and reconfigurable hardware circuits including memory elements.
  • FPGAs Field Programmable Gate Arrays
  • PDAs Programmable Logic Arrays
  • the computer readable storage medium may include any tangible device capable of storing instructions executed by the appropriate device, so that the computer readable storage medium having the instructions stored therein may be in a flow chart or block diagram. It will be equipped with a product that contains instructions that can be executed to create means for performing the specified operation.
  • Examples of the computer-readable storage medium may include an electronic storage medium, a magnetic storage medium, an optical storage medium, an electromagnetic storage medium, a semiconductor storage medium, and the like. More specific examples of computer-readable storage media include floppy (registered trademark) disks, diskettes, hard disks, random access memory (RAM), read-only memory (ROM), and erasable programmable read-only memory (EPROM or flash memory).
  • EEPROM Electrically Erasable Programmable Read Only Memory
  • SRAM Static Random Access Memory
  • CD-ROM Compact Disc Read Only Memory
  • DVD Digital Versatile Disc
  • Blu-ray® Disc Memory Stick
  • Integrated circuit card etc.
  • Computer-readable instructions include assembler instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcodes, firmware instructions, state-setting data, or Smalltalk®, JAVA®, C ++, etc.
  • ISA instruction set architecture
  • Object-oriented programming languages and either source code or object code written in any combination of one or more programming languages, including traditional procedural programming languages such as the "C" programming language or similar programming languages. May include.
  • Computer-readable instructions are used to generate means for a general-purpose computer, a special-purpose computer, or the processor of another programmable data processing device, or a programmable circuit, to perform an operation specified in a flowchart or block diagram.
  • Examples of processors include computer processors, processing units, microprocessors, digital signal processors, controllers, microcontrollers, and the like.
  • HAPS100 is mentioned as an example of an air vehicle having an antenna for forming a wireless communication area by irradiating a beam toward the ground and providing a wireless communication service to a user terminal in the wireless communication area.
  • air vehicles include unmanned aerial vehicles such as balloons, airships, airplanes, and drones that can form radio communication areas.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un appareil de station de base à monter sur un aéronef pour former une cellule multiple incluant une pluralité de cellules au sol pour fournir un service de communication sans fil à un terminal d'utilisateur dans la cellule multiple. L'appareil de station de base comprend : une unité d'acquisition d'informations de position pour acquérir des informations de position d'un terminal d'utilisateur résidant dans la cellule multiple ; une unité d'acquisition d'informations relatives à un aéronef pour acquérir des informations relatives à un aéronef incluant des informations de position et des informations d'attitude de l'aéronef ; une unité d'identification de terminal qui, sur la base des informations de position d'une pluralité de terminaux d'utilisateur et des informations relatives à un aéronef, identifie un terminal d'utilisateur soumis à des interférences parmi la pluralité de terminaux d'utilisateur dont il est prédit qu'ils seront soumis à des interférences provenant d'une cellule autre que la cellule de résidence ; et une unité de commande de programmation qui, afin d'éviter des interférences, commande la programmation de ressources sans fil pour une première cellule, qui est la cellule dans laquelle réside le terminal d'utilisateur soumis à des interférences, et pour une seconde cellule, qui est la cellule prédite pour produire des interférences avec le terminal d'utilisateur soumis à des interférences.
PCT/JP2021/046363 2020-12-25 2021-12-15 Appareil de station de base, programme, système, et procédé de commande WO2022138392A1 (fr)

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EP21910540.0A EP4271096A1 (fr) 2020-12-25 2021-12-15 Appareil de station de base, programme, système, et procédé de commande
US18/337,435 US20230337195A1 (en) 2020-12-25 2023-06-20 Base station apparatus, computer-readable storage medium, system, and control method

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JP2020217613A JP7502178B2 (ja) 2020-12-25 2020-12-25 基地局装置、プログラム、システム及び制御方法
JP2020-217613 2020-12-25

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010137313A1 (fr) * 2009-05-27 2010-12-02 Kddi株式会社 Dispositif et programme d'allocation de fréquence
JP2011004100A (ja) * 2009-06-18 2011-01-06 Fujitsu Ltd 無線通信システム、端末装置、及び無線通信システムにおける無線通信方法
JP2019213078A (ja) * 2018-06-06 2019-12-12 Ｈａｐｓモバイル株式会社 Ｈａｐｓのフィーダリンクに用いる電波資源の有効活用及びｈａｐｓのセル最適化
JP2020167450A (ja) * 2019-03-28 2020-10-08 Ｈａｐｓモバイル株式会社 無線通信装置、システム、プログラム、及び制御方法
JP2020170888A (ja) 2019-04-01 2020-10-15 Ｈａｐｓモバイル株式会社 通信制御装置、通信システム、プログラム、及び通信制御方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010137313A1 (fr) * 2009-05-27 2010-12-02 Kddi株式会社 Dispositif et programme d'allocation de fréquence
JP2011004100A (ja) * 2009-06-18 2011-01-06 Fujitsu Ltd 無線通信システム、端末装置、及び無線通信システムにおける無線通信方法
JP2019213078A (ja) * 2018-06-06 2019-12-12 Ｈａｐｓモバイル株式会社 Ｈａｐｓのフィーダリンクに用いる電波資源の有効活用及びｈａｐｓのセル最適化
JP2020167450A (ja) * 2019-03-28 2020-10-08 Ｈａｐｓモバイル株式会社 無線通信装置、システム、プログラム、及び制御方法
JP2020170888A (ja) 2019-04-01 2020-10-15 Ｈａｐｓモバイル株式会社 通信制御装置、通信システム、プログラム、及び通信制御方法

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US20230337195A1 (en) 2023-10-19
JP2022102720A (ja) 2022-07-07
EP4271096A1 (fr) 2023-11-01

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